The latest Forza Horizon 6 Update 6 has brought significant changes to competitive racing, giving several previously overlooked vehicles a new chance to shine. While the update introduced new engine swaps for existing cars, its real impact goes much deeper than the official patch notes suggest. From powerful supercharger combinations to unexpected tire options, players now have more ways to build competitive vehicles across multiple classes. For racers looking to upgrade their garages and prepare for online competition, understanding these changes is essential when planning how to use Forza Horizon 6 Credits effectively.

New Engine Swaps Transform the Mazda 787B and Ginetta

One of the most interesting aspects of Update 6 is how certain vehicles become more competitive after receiving engines that initially appear weaker. The Mazda 787B and several Ginetta models demonstrate this unusual approach to car balancing. Although some new engine swaps reduce horsepower and lower a vehicle's performance index, they can create opportunities for more effective builds when combined with drivetrain and tire upgrades.

The centrifugal supercharger is particularly important. On one tested configuration, adding this component increases output by approximately 64 horsepower while adding only around 13 pounds of weight. Surprisingly, the performance index can decrease despite the additional power. This allows players to build cars with stronger performance without necessarily pushing them into a higher class.

The Mazda 787B can benefit from these combinations, with carefully selected upgrades making it competitive in S1-class racing. The Ginetta also demonstrates impressive performance, offering exceptional grip and stability. However, this setup may not suit every driving style. Its strong traction helps maintain speed through corners, but the car can feel less agile than vehicles that allow more movement and rotation.

Players interested in trying these builds should look for community tunes created after the relevant Update 6 changes became available. These setups can provide a useful starting point for testing the new engine combinations.

Mazda Furai Becomes a Powerful S2-Class Contender

The Mazda Furai receives a similar treatment, but its strongest potential lies in the S2 class. By switching to the available V6 engine and installing a centrifugal supercharger, players can create a surprisingly competitive build. Pairing the engine configuration with soft-compound slick tires provides substantial grip and helps the car maintain speed through demanding corners.

Early testing suggests that the Furai can outperform some previously dominant setups. Nevertheless, it is too early to declare one vehicle the permanent S2 meta. Update 6 has only recently changed the competitive landscape, and more testing is needed to determine how different cars perform across a variety of tracks.

The more important result is that S2 racing now offers additional competitive choices. Instead of relying on one exceptionally powerful vehicle, players can experiment with several builds and choose cars that match their preferred handling characteristics.

Nissan Engine Swaps Make the GT-R Worth Revisiting

Another major change involves Nissan vehicles, including the 370Z and GT-R. The newly available VQ engine creates fresh tuning possibilities for cars that have often struggled to compete with stronger alternatives.

The Nissan GT-R is particularly interesting. With an appropriate engine configuration, a centrifugal supercharger, all-wheel drive, and carefully selected upgrades, it can become a serious contender rather than a vehicle chosen mainly for its appearance or reputation.

In the source creator's testing, a modified GT-R achieved a lap time of approximately 1 minute and 1.3 seconds on the tested circuit. It also competed effectively against a tuned Chevrolet Camaro, showing that the right combination of upgrades can make a substantial difference.

The GT-R may not immediately become the best car in its class, but its improved performance gives players another reason to experiment with Nissan builds. This is exactly the kind of change that can make online racing more interesting: more cars become viable, and tuning knowledge becomes more valuable.

Hidden Tire Options Add More Customization Possibilities

Update 6 also appears to include customization changes that were not fully highlighted in the official patch notes. Several high-performance road cars have gained additional tire options, including the Hennessey Venom, Ferrari SF90, and Lamborghini Centenario.

Depending on the vehicle, players may be able to choose between different semi-slick or soft-compound tire configurations. These options create more flexibility when balancing grip, handling, and performance index restrictions.

However, the highest-grip tire is not always the most efficient choice. Some compounds consume too many performance index points to justify their benefits in a particular class. Players should compare lap times and handling behavior rather than automatically selecting the most expensive or advanced tire available.

These hidden additions also highlight the value of detailed customization. Even relatively small changes can affect how a vehicle behaves, especially when players are trying to optimize a build for a specific class or circuit.

The Dodge Viper V10 Gives the Jeep Gladiator New Potential

The Dodge Viper's V10 engine remains another major part of the updated tuning landscape. When installed in compatible vehicles, this engine can provide a substantial power increase without necessarily forcing the car into a much higher performance class.

Combining the V10 with a centrifugal supercharger can deliver approximately 100 additional horsepower for only around 11 performance index points in the tested configuration. Such efficiency makes the combination especially attractive for creative builds.

The Jeep Gladiator is a surprising example. Equipped with the V10, off-road tires, and all-wheel drive, it becomes a much more capable vehicle than its previous reputation might suggest. The added power improves acceleration, while its stable handling helps it remain controllable on dirt-focused routes.

This transformation illustrates the broader purpose of Update 6. Rather than simply introducing stronger cars, the developers have created new opportunities for existing vehicles to compete in ways that were previously difficult.

Why Update 6 Could Improve Online Racing

The biggest achievement of Update 6 may be its approach to balance. Some players may focus on identifying the next dominant car, but the changes suggest a broader goal: reducing the gap between the strongest vehicles and expanding the range of competitive options.

S1 and S2 racing appear to benefit particularly from the new engine swaps and tuning combinations. Meanwhile, A-class competition also gains opportunities for overlooked cars to become more useful, even if its overall meta has not changed as dramatically.

More viable vehicles can make online races less predictable and encourage players to explore different builds. Combined with the potential introduction of ranked racing, better balance could have a more lasting impact on the game than simply adding another collection of cars or body kits.

Ultimately, Forza Horizon 6 Update 6 rewards experimentation. The best build depends on the track, class restrictions, tire selection, drivetrain, and driving style. Players who test these combinations carefully will have more opportunities to discover competitive setups rather than copying the same vehicle used by everyone else. Whether you are refining an existing garage or preparing for tougher online events, FH6 Super Wheelspins can be part of your broader progression goals, while learning the new tuning options will help you get more out of the cars you already own.